A surface grinding device for car frame painting

Abstract

This utility model discloses a surface grinding device for vehicle frame painting, comprising: a grinding machine body, a collecting component on the grinding machine body, a mounting frame at one end of the collecting component, a mobile vehicle fixedly connected to the bottom end of the mounting frame, a water tank fixedly connected to the top end of the mobile vehicle, a dust-suppressing component on the water tank, and a filter component inside the water tank; water is thrown through the drain hole on the rotating cylinder of the dust-suppressing component, and the spiral fan blades disperse the water into a fine water mist, increasing the contact area between dust and water, effectively capturing and settling dust, and the drain holes are evenly distributed in the space between the fan blades to form a continuous and stable water curtain, avoiding blind spots in coverage.

Description

Technical Field

[0001] This utility model relates to the field of surface grinding equipment technology, specifically a surface grinding device for vehicle frame painting. Background Technology

[0002] Frame painting is a coating process applied to the surface of a bicycle frame. High-temperature baking cures the paint, forming a hard, smooth, and durable coating. Its core purpose is to improve the frame's aesthetics, corrosion resistance, and lifespan. Surface grinding, a crucial pre-treatment step in the frame painting process, aims to improve the frame's surface condition through physical polishing, laying the foundation for subsequent paint application and adhesion. The quality of this step directly affects the paint's adhesion, smoothness, and durability. Inadequate surface grinding can lead to insufficient coating adhesion, easy peeling, or surface imperfections. Fine grinding, on the other hand, significantly enhances the bond between the paint and the substrate, ensuring a uniform, firm, and high-quality final coating.

[0003] Existing surface grinding devices for vehicle frame painting mostly use single-point spraying or fixed-angle water spraying, which easily creates blind spots in complex structures such as frame tube connections and corners, resulting in incomplete dust suppression. In particular, they have a weak ability to capture small inhalable dust particles, and the water mist particles are coarse and unevenly distributed, resulting in a limited contact area between dust and water, low dust reduction efficiency, and some dust will still escape into the air and cause pollution. Utility Model Content

[0004] The purpose of this invention is to address the problem that existing surface grinding devices for vehicle frame painting often use single-point spraying or fixed-angle water spraying, which easily create blind spots in complex structures such as vehicle frame tube connections and corners, resulting in incomplete dust suppression. In particular, they have weak capture ability for small-sized inhalable dust particles, and the water mist particles are coarse and unevenly distributed, resulting in limited contact area between dust and water, low dust reduction efficiency, and some dust still escaping into the air and causing pollution. Therefore, this invention provides a surface grinding device for vehicle frame painting.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a surface grinding device for vehicle frame painting, comprising: a grinding machine body, a collecting component provided on the grinding machine body, a mounting frame provided at one end of the collecting component, a mobile vehicle fixedly connected to the bottom end of the mounting frame, a water tank fixedly connected to the top end of the mobile vehicle, a dust-reducing component provided on the water tank, and a filter component provided inside the water tank;

[0006] The dust suppression component includes a rotating cylinder rotatably connected to a water tank. A motor is fixedly connected to the outside of the water tank. The output end of the motor passes through the water tank and is fixedly connected to the rotating cylinder. A fan blade is fixedly connected to the outside of the rotating cylinder. A drain hole is opened through the outer circumference of the rotating cylinder. One end of the rotating cylinder passes through the water tank and is rotatably fixedly connected to a rotary joint. One end of the rotary joint is fixedly connected to a connecting pipe. The rotating cylinder and the connecting pipe are connected through the rotary joint. A water pump is fixedly connected to the top of the mobile vehicle. One end of the connecting pipe is fixedly connected to the water outlet of the water pump. The water inlet of the water pump passes through the water tank.

[0007] As a further embodiment of this utility model: the fan blades are provided in multiple sets, evenly distributed on the outer surface of the rotating cylinder, and the fan blades are spirally wound around the outer surface of the rotating cylinder; the drainage holes are provided in multiple sets, evenly distributed in the rotating cylinder area between every two sets of fan blades.

[0008] As a further embodiment of this utility model: the collecting component includes a mounting groove formed on the side of the main shell of the grinding machine. A spring is fixedly connected to the top of the inside of the mounting groove, and a dust collection hood is fixedly connected to the bottom of the spring. A spring is fixedly connected to the bottom of the inside of the dust collection hood, and the bottom of the spring is fixedly connected to the bottom of the inside of the mounting groove. A dust collection pipe is connected through the outside of the dust collection hood. A ring pipe is connected through one end of the dust collection pipe, and a dust extraction pipe is connected through one end of the ring pipe. Multiple sets of dust collection pipes are provided and evenly distributed inside the ring pipe.

[0009] As a further embodiment of this utility model: an air pump is provided at one end of the dust extraction pipe, the air inlet of the air pump is connected to the dust extraction pipe, the air outlet of the air pump is connected to a connecting pipe, and one end of the connecting pipe is connected to a water tank.

[0010] As a further embodiment of this utility model: the filter element includes a flow guide frame fixedly connected to the inner wall of the water tank, a support block fixedly connected to the inner wall of the water tank, the support block being disposed below the flow guide frame, a filter box being slidably connected to the top of the support block, one end of the filter box penetrating one side of the water tank, the top of the filter box being slidably connected to the bottom of the flow guide frame, and the filter box being filled with filter material.

[0011] As a further improvement of this utility model, the guide frame is composed of four sets of straight blocks with triangular cross-sections, and water is guided into the filter box through the top inclined surface of the guide frame.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] In this invention, the dual elastic support of springs one and two in the collecting component allows the dust collection hood to adapt to the curvature and undulation of the vehicle frame surface, closely fitting the grinding area and preventing dust spillage. Multiple sets of dust collection pipes and ring pipes form a ring-shaped negative pressure array, simultaneously adsorbing dust from multiple directions, providing wide coverage and balanced suction. Dust can be effectively captured even in complex structures. The elastic connection also protects the grinder, enabling simultaneous grinding and collection, improving efficiency. Water is sprayed through the drain holes on the rotating cylinder in the dust-suppressing component, and the spiral fan blades disperse the water into a fine mist, increasing the contact area between dust and water, effectively capturing settled dust. The drain holes are evenly distributed in the fan blade intervals, forming a continuous and stable water curtain, avoiding blind spots. The triangular inclined structure of the guide frame in the filter component evenly guides the dust-containing wastewater into the filter box. The filter box has a drawer-type detachable structure, which can be pulled out without tools after grinding, facilitating the replacement and cleaning of the filter material. The filter material intercepts solid impurities, and the purified water is recycled, achieving closed-loop utilization of water resources, reducing emissions, and preventing dust deposition from affecting the dust suppression effect. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the surface grinding device for vehicle frame painting described in this utility model;

[0015] Figure 2 This is a schematic diagram of the dust collection hood in the surface grinding device for car frame painting described in this utility model;

[0016] Figure 3 This is a schematic diagram of the annular tube structure in the surface grinding device for vehicle frame painting described in this utility model;

[0017] Figure 4 This is a schematic diagram of the air pump in the surface grinding device for car frame painting described in this utility model;

[0018] Figure 5 This is a schematic diagram of the dust-reducing component in a surface grinding device for vehicle frame painting according to the present invention;

[0019] Figure 6 This is a schematic diagram of the filter element in the surface grinding device for car frame painting described in this utility model.

[0020] In the diagram: 1. Grinding machine body; 2. Collection component; 21. Mounting slot; 22. Spring 1; 23. Dust collection hood; 24. Spring 2; 25. Dust collection pipe; 26. Ring pipe; 27. Dust extraction pipe; 28. Air pump; 29. ​​Connecting pipe; 3. Mounting frame; 4. Mobile cart; 5. Water tank; 6. Dust suppression component; 61. Rotating cylinder; 62. Motor; 63. Fan blade; 64. Drain hole; 65. Rotary joint; 66. Connecting pipe; 67. Water pump; 7. Filter component; 71. Guide frame; 72. Support block; 73. Filter box; 74. Filter material. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. The embodiments of this utility model will be described below based on its overall structure.

[0023] Reference Figure 1 In this embodiment of the utility model, a surface grinding device for car frame painting includes: a grinding machine body 1, a collecting component 2 on the grinding machine body 1, a mounting frame 3 at one end of the collecting component 2, a mobile vehicle 4 fixedly connected to the bottom end of the mounting frame 3, a water tank 5 fixedly connected to the top end of the mobile vehicle 4, a dust-reducing component 6 on the water tank 5, and a filter component 7 inside the water tank 5.

[0024] Reference Figures 2 to 4The collecting component 2 includes a mounting groove 21 located on the side of the outer shell of the grinding machine body 1. A spring 22 is fixedly connected to the top of the mounting groove 21. A dust collection hood 23 is fixedly connected to the bottom of the spring 22. A spring 24 is fixedly connected to the bottom of the dust collection hood 23. The bottom of the spring 24 is fixedly connected to the bottom of the mounting groove 21. A dust collection pipe 25 is connected through the outside of the dust collection hood 23. A ring pipe 26 is connected through one end of the dust collection pipe 25. A dust extraction pipe 27 is connected through one end of the ring pipe 26. Multiple sets of dust collection pipes 25 are provided and evenly distributed inside the ring pipe 26. An air pump 28 is provided at one end of the dust extraction pipe 27. The air inlet of the air pump 28 is connected through the dust extraction pipe 27. A connecting pipe 29 is connected through the air outlet of the air pump 28. One end of the connecting pipe 29 is connected through the water tank 5.

[0025] The above solution employs a dual elastic support system of spring 22 and spring 24, allowing the dust collection hood 23 to adapt to the curvature and undulations of the frame surface. This ensures that the dust collection hood remains tightly fitted to the grinding area as the grinder moves, preventing dust spillage. Multiple evenly distributed dust collection pipes 25 and ring pipes 26 form a ring-shaped negative pressure array, simultaneously adsorbing dust generated during grinding from multiple directions. Compared to a single suction port, this provides a wider coverage area and more balanced suction, effectively capturing dust from complex structures such as welds and corners. The elastically connected dust collection hood 23 automatically rebounds when encountering frame protrusions, protecting the main body 1 of the grinder from rigid impact damage and ensuring that the collection system moves synchronously with the grinder, enabling continuous operation of grinding and collecting simultaneously, thus improving overall grinding efficiency.

[0026] Reference Figure 5 The dust suppression component 6 includes a rotating cylinder 61 rotatably connected to the water tank 5. A motor 62 is fixedly connected to the outside of the water tank 5. The output end of the motor 62 passes through the water tank 5 and is fixedly connected to the rotating cylinder 61. Fan blades 63 are fixedly connected to the outside of the rotating cylinder 61. A drain hole 64 is opened through the outer circular surface of the rotating cylinder 61. One end of the rotating cylinder 61 passes through the water tank 5 and is rotatably fixedly connected to a rotary joint 65. One end of the rotary joint 65 is fixedly connected to a connecting pipe 66. The rotating cylinder 61 and the connecting pipe 66 are connected through the rotary joint 65. A water pump 67 is fixedly connected to the top of the mobile vehicle 4. One end of the connecting pipe 66 is fixedly connected to the water outlet of the water pump 67. The water inlet of the water pump 67 passes through the water tank 5. Multiple sets of fan blades 63 are provided and evenly distributed on the outer circular surface of the rotating cylinder 61. The fan blades 63 are spirally wound around the outer circular surface of the rotating cylinder 61. Multiple sets of drain holes 64 are provided and evenly distributed in the area of ​​the rotating cylinder 61 between every two sets of fan blades 63.

[0027] The above solution involves: water input from pump 67 being thrown out through drain holes 64 on rotating cylinder 61, and then dispersed by spirally wound fan blades 63, breaking it into a fine water mist. This increases the contact area between dust and water, allowing dust to be effectively captured and settled. Drain holes 64 are evenly distributed in the intervals between fan blades 63, ensuring that a continuous and stable water curtain is formed when rotating cylinder 61, avoiding the blind spots of traditional single-point water spraying.

[0028] Reference Figure 6 The filter element 7 includes a flow guide frame 71 fixedly connected to the inner wall of the water tank 5. A support block 72 is fixedly connected to the inner wall of the water tank 5. The support block 72 is located below the flow guide frame 71. A filter box 73 is slidably connected to the top of the support block 72. One end of the filter box 73 passes through one side of the water tank 5. The top of the filter box 73 is slidably connected to the bottom of the flow guide frame 71. The filter box 73 is filled with filter material 74. The flow guide frame 71 is composed of four sets of straight blocks with triangular cross sections. Water is guided into the filter box 73 through the inclined surface at the top of the flow guide frame 71.

[0029] The above solution is adopted: the inclined structure formed by four sets of triangular cross-section straight blocks in the guide frame 71 can accurately guide the dust-containing sewage into the filter box 73. The filter box 73 is slidably connected to the water tank 5 through the support block 72 to form a drawer-type detachable structure. After the grinding operation, it can be pulled out along the support block 72 without tools, which is convenient for quick replacement or cleaning of the filter material 74, significantly reducing the difficulty of manual maintenance. After passing through the filter material 74, solid impurities are intercepted layer by layer, and the purified water seeps into the bottom of the water tank 5 to supply the water pump 67 for circulation, realizing the closed-loop utilization of water resources, reducing sewage discharge, and avoiding dust deposition in the water tank 5 to affect the atomization effect of the dust settling component 6.

[0030] The working principle of this utility model is as follows: First, the mobile cart 4 is pushed to move the device to the side of the frame to be ground. Then, the main body of the grinder 1 is started to grind the surface of the frame. At the same time, the air pump 28 is turned on. The air pump 28 generates negative pressure through the dust extraction pipe 27, the ring pipe 26, and the evenly distributed dust collection pipe 25. Under the elastic action of the spring 1 22 and the spring 24, the dust generated by grinding is pressed tightly against the grinding area of ​​the frame, and the dust generated by grinding is sucked into the dust collection hood 23. It is then transported to the air pump 28 through the dust collection pipe 25, the ring pipe 26, and the dust extraction pipe 27, and then discharged into the water tank 5 through the connecting pipe 29. At the same time as the dust is sucked into the water tank 5, the motor 62 and the water pump 67 are started. The water pump 67 pumps water from the water tank 5. Water is extracted from the bottom and transported to the rotating drum 61 via connecting pipe 66 and rotary joint 65. Simultaneously, motor 62 drives the rotating drum 61 to rotate, causing water inside to be flung out through drain hole 64. At the same time, the spirally wound fan blades 63 on the outside of the rotating drum 61 rotate, dispersing the flung water droplets into a water mist. This mist fully contacts the dust sucked into the water tank 5, causing the dust to settle. The dust-laden wastewater in the water tank 5 is first guided by the triangular inclined surface of the guide frame 71, allowing the water to flow evenly into the lower filter box 73. The filter material 74 in the filter box 73 intercepts and purifies the dust. The purified water remains at the bottom of the water tank 5. The water pump 67 is used in a cyclical manner. After the grinding operation is completed, the filter box 73 can be pulled out along the support block 72 to replace or clean the filter material 74, continuously keeping the water in the water tank 5 clean for the next operation. Through the double elastic support of spring 1 22 and spring 24 in the collection component 2, the dust collection hood 23 can adapt to the curvature and undulation of the frame surface, closely fitting the grinding area to prevent dust from overflowing. Multiple sets of dust collection pipes 25 and ring pipes 26 form a ring negative pressure array, which simultaneously adsorbs dust from multiple directions, with a wide coverage and balanced suction. Dust can be effectively captured even in complex structures. The elastic connection can also protect the grinder, realizing simultaneous grinding and collection, improving efficiency. The drain holes 64 on the rotating cylinder 61 in section 6 spray water, and the spiral fan blades 63 disperse the water into a fine mist, increasing the contact area between dust and water, effectively capturing and settling dust. The drain holes 64 are evenly distributed in the interval area of ​​the fan blades 63, forming a continuous and stable water curtain to avoid covering blind spots. Through the triangular inclined structure of the guide frame 71 in the filter element 7, the dust-containing wastewater is evenly introduced into the filter box 73. The filter box 73 has a drawer-type detachable structure, which can be pulled out without tools after grinding, making it convenient to replace and clean the filter material 74. The filter material 74 intercepts solid impurities, and the purified water is recycled to achieve closed-loop utilization of water resources, reduce emissions, and avoid dust deposition affecting the dust reduction effect.

[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A surface grinding device for vehicle frame painting, characterized in that, include: The main body of the grinding machine (1) is provided with a collection component (2), a mounting frame (3) is provided at one end of the collection component (2), a mobile vehicle (4) is fixedly connected to the bottom end of the mounting frame (3), a water tank (5) is fixedly connected to the top end of the mobile vehicle (4), a dust suppression component (6) is provided on the water tank (5), and a filter component (7) is provided inside the water tank (5). The dust suppression component (6) includes a rotating cylinder (61) rotatably connected to a water tank (5). A motor (62) is fixedly connected to the outside of the water tank (5). The output end of the motor (62) passes through the water tank (5) and is fixedly connected to the rotating cylinder (61). A fan blade (63) is fixedly connected to the outside of the rotating cylinder (61). A drain hole (64) is opened through the outer circular surface of the rotating cylinder (61). One end of the rotating cylinder (61) passes through the water tank (5) and is rotatably fixedly connected to a rotary joint (65). One end of the rotary joint (65) is fixedly connected to a connecting pipe (66). The rotating cylinder (61) and the connecting pipe (66) are connected through the rotary joint (65). A water pump (67) is fixedly connected to the top of the mobile vehicle (4). One end of the connecting pipe (66) is fixedly connected to the outlet end of the water pump (67). The inlet end of the water pump (67) passes through the water tank (5).

2. The surface grinding device for vehicle frame painting according to claim 1, characterized in that, The fan blades (63) are provided in multiple sets and are evenly distributed on the outer surface of the rotating cylinder (61). The fan blades (63) are spirally wound around the outer surface of the rotating cylinder (61). The drain holes (64) are provided in multiple sets and are evenly distributed in the area of ​​the rotating cylinder (61) between every two sets of fan blades (63).

3. The surface grinding device for vehicle frame painting according to claim 2, characterized in that, The collecting component (2) includes a mounting groove (21) opened on the side of the outer shell of the grinding machine body (1). A spring (22) is fixedly connected to the top of the mounting groove (21). A dust collection cover (23) is fixedly connected to the bottom of the spring (22). A spring (24) is fixedly connected to the bottom of the dust collection cover (23). The bottom of the spring (24) is fixedly connected to the bottom of the mounting groove (21). A dust collection pipe (25) is connected through the outside of the dust collection cover (23). A ring pipe (26) is connected through one end of the dust collection pipe (25). A dust extraction pipe (27) is connected through one end of the ring pipe (26). Multiple sets of dust collection pipes (25) are provided and evenly distributed inside the ring pipe (26).

4. The surface grinding device for vehicle frame painting according to claim 3, characterized in that, An air pump (28) is provided at one end of the dust extraction pipe (27). The air inlet of the air pump (28) is connected to the dust extraction pipe (27). The air outlet of the air pump (28) is connected to a connecting pipe (29). One end of the connecting pipe (29) is connected to the water tank (5).

5. The surface grinding device for vehicle frame painting according to claim 4, characterized in that, The filter element (7) includes a flow guide frame (71) fixedly connected to the inner wall of the water tank (5). A support block (72) is fixedly connected to the inner wall of the water tank (5). The support block (72) is located below the flow guide frame (71). A filter box (73) is slidably connected to the top of the support block (72). One end of the filter box (73) passes through one side of the water tank (5). The top of the filter box (73) is slidably connected to the bottom of the flow guide frame (71). The filter box (73) is filled with filter material (74).

6. The surface grinding device for vehicle frame painting according to claim 5, characterized in that, The guide frame (71) consists of four sets of straight blocks with triangular cross sections, and water is guided into the filter box (73) through the top inclined surface of the guide frame (71).

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